I have the 200 model as the 300 offered too much space for additional gear and I did not want the weight to hassle with,,
I carry my E3 with the 12-60mm mounted as well as my 50-200mm and 150mm and 35mm macro,, total weight of the bag on my back is right at 14 pounds which is very managable,,
the quality of the bag is very good,, the internal spacers could use more velcro surface for greater adjustments,,
all my past bags were shoulder straps and it took a tad to get use to this arrangement which I now prefer,,
I carry my E3 with the 12-60mm mounted as well as my 50-200mm and 150mm and 35mm macro,, total weight of the bag on my back is right at 14 pounds which is very managable,,
the quality of the bag is very good,, the internal spacers could use more velcro surface for greater adjustments,,
all my past bags were shoulder straps and it took a tad to get use to this arrangement which I now prefer,,